<!doctype html>
<html>
  <body>
    <div>
      <div>测试你对时间的感觉.</div>
      <button id="hold-me">按住我一秒钟然后松手</button>
      <div> 你的时间: <span id="hold-time"></span>毫秒</div>
      <div id="rank"></div>
    </div>
    <script src="https://unpkg.com/rxjs@5.5.2/bundles/Rx.min.js"></script>
    <script src="./timingSenseTest.js"></script>
  </body>
</html>

